diff --git a/.github/workflows/CompatHelper.yml b/.github/workflows/CompatHelper.yml
index bb6ad230..6fb60fb2 100644
--- a/.github/workflows/CompatHelper.yml
+++ b/.github/workflows/CompatHelper.yml
@@ -16,7 +16,7 @@ jobs:
         run : |
           version=$(grep '^julia = ' Project.toml | grep -o '".*"' | cut -d '"' -f2)
           echo "::set-output name=version::$version"
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ steps.julia_compat.outputs.version }}
       - name: Install CompatHelper
diff --git a/.github/workflows/Test.yml b/.github/workflows/Test.yml
index e73b2e56..ef65a72f 100644
--- a/.github/workflows/Test.yml
+++ b/.github/workflows/Test.yml
@@ -13,7 +13,7 @@ concurrency:
 
 jobs:
   release_test:
-    name: Julia ${{ matrix.version }} ${{ matrix.llvm_args }} - ${{ matrix.os }} - ${{ matrix.arch }}
+    name: Julia ${{ matrix.version }} ${{ matrix.llvm_args }} - ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     timeout-minutes: 10
     strategy:
@@ -21,71 +21,47 @@ jobs:
       matrix:
         version: ['1.10', '1.11', '1.12', '1.13-nightly', 'nightly']
         os: [ubuntu-24.04, ubuntu-24.04-arm, macOS-15, macOS-15-intel, windows-2025]
-        arch: [x64, arm64]
         llvm_args: ['']
-        exclude:
-          # unsupported combinations
-          - os: ubuntu-24.04
-            arch: arm64
-          - os: windows-2025
-            arch: arm64
-          - os: ubuntu-24.04-arm
-            arch: x64
-          - os: macOS-15
-            arch: x64
-          - os: macOS-15-intel
-            arch: arm64
         include:
           # starting with Julia 1.10, we can enable opaque pointers
           # from Julia 1.12 on, this is the default.
           - version: '1.10'
             os: 'ubuntu-24.04'
-            arch: 'x64'
             llvm_args: '--opaque-pointers'
           - version: '1.10'
             os: 'ubuntu-24.04-arm'
-            arch: 'arm64'
             llvm_args: '--opaque-pointers'
           - version: '1.10'
             os: 'macOS-15'
-            arch: 'arm64'
             llvm_args: '--opaque-pointers'
           - version: '1.10'
             os: 'macOS-15-intel'
-            arch: 'x64'
             llvm_args: '--opaque-pointers'
           - version: '1.10'
             os: 'windows-2025'
-            arch: 'x64'
             llvm_args: '--opaque-pointers'
           - version: '1.11'
             os: 'ubuntu-24.04'
-            arch: 'x64'
             llvm_args: '--opaque-pointers'
           - version: '1.11'
             os: 'ubuntu-24.04-arm'
-            arch: 'arm64'
             llvm_args: '--opaque-pointers'
           - version: '1.11'
             os: 'macOS-15'
-            arch: 'arm64'
             llvm_args: '--opaque-pointers'
           - version: '1.11'
             os: 'macOS-15-intel'
-            arch: 'x64'
             llvm_args: '--opaque-pointers'
           - version: '1.11'
             os: 'windows-2025'
-            arch: 'x64'
             llvm_args: '--opaque-pointers'
     steps:
       - uses: actions/checkout@v6
 
       - name: Install Julia
-        uses: julia-actions/setup-julia@v2
+        uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
 
       - name: Set-up cache
         uses: julia-actions/cache@v3
@@ -115,7 +91,6 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-24.04]
-        arch: [x64]
         llvm_args: ['']
         include:
           - version: '1.12'